如何使用不同的协议配置两个Mosquitto监听器？

Question

我正在尝试在 Ubuntu 22.04 中的 mosquitto 2.0.11 上启用 websocket。 这是我的

/etc/mosquitto/mosquitto.conf

：

pid_file /run/mosquitto/mosquitto.pid
per_listener_settings true
password_file /etc/mosquitto/pwd_mqtt
persistence true
persistence_location /var/lib/mosquitto/
log_dest file /var/log/mosquitto/mosquitto.log
include_dir /etc/mosquitto/conf.d
connection_messages true
log_timestamp true

listener 1883
protocol mqtt
allow_anonymous false

listener 8080
protocol websockets
allow_anonymous false

开始于：

mosquitto -c /etc/mosquitto/mosquitto.conf -v

，它输出为

/var/log/mosquitto/mosquitto.log

：

1707293771: mosquitto version 2.0.11 starting
1707293771: Config loaded from /etc/mosquitto/mosquitto.conf.
1707293771: Opening ipv4 listen socket on port 1883.
1707293771: Opening ipv6 listen socket on port 1883.
1707293771: Opening websockets listen socket on port 8080.
1707293771: Opening ipv4 listen socket on port 1883.
1707293771: Error: Address already in use

为什么它会尝试在第二个侦听器上再次打开端口 1883？

Answer 1

我已经用 Mosquitto 2.0.18 复制了这个：

mosquitto-1  | 1707333576: mosquitto version 2.0.18 starting
mosquitto-1  | 1707333576: Config loaded from /mosquitto/config/mosquitto.conf.
mosquitto-1  | 1707333576: Opening ipv4 listen socket on port 1883.
mosquitto-1  | 1707333576: Opening ipv6 listen socket on port 1883.
mosquitto-1  | 1707333576: Opening websockets listen socket on port 8080.
mosquitto-1  | 1707333576: Opening ipv4 listen socket on port 1883.
mosquitto-1  | 1707333576: Error: Address in use
mosquitto-1 exited with code 

问题似乎是

password_file

是一个

per_listener

设置，但在您的配置中，您将其放置在

listener

行上方，这意味着它适用于默认侦听器。要解决此问题，请删除

per_listener_settings true

（您的配置中不需要它），或者移动

password_file

行，即（稍微简化一下）：

per_listener_settings true
connection_messages true
log_timestamp true

listener 1883
protocol mqtt
allow_anonymous false
password_file /mosquitto/config/pwd_mqtt

listener 8080
protocol websockets
allow_anonymous false
password_file /mosquitto/config/pwd_mqtt

请参阅此问题了解类似内容。